I'm not trying to support above user who accuse coinroyale as scam, but above user claims that he do not get his deposits back. So it will be better if you can provide us a legit proof of it as what he asked for. TXID of the returned deposits is enough to make it clear and above user will stop complaining.
Make it clear through for refund the deposit. Please make clarify with the user about address for refund, just worried if she/he deposit or spend through external wallet like (exchanger or other casino, etc).